The bottle Natural Advent and especially its innovative pacifier convinced me. I tried from its 2 months, for 1 month, to give him a bottle a day, anticipating his return to nursery. Always 1h tears and exhaustion before taking the bib. More pb with bib Natural. Fully adopted since it was bought, she made the switch from bottle to healthy without pb for 6 weeks now. Moreover, it took a lot to air and we had to stop every 50ml burp what brought us to the galley to give him the bib. With its dual ventilation system, it can take a whole bibi in stop and if it happens to burp it resumes without pb. Advent Congratulations and thank you.